Anita Harnadek

Anita 'Penny' Harnadek was a teacher at Warren Lincoln High School, an author of math textbooks and critical thinking books such as Critical Thinking Book One and Mind Benders B3, and a Life Master Bridge Player. She published numerous educational works focused on deductive thinking and problem-solving skills through The Critical Thinking Co. Her books have garnered attention in educational circles, with 88 titles listed on Goodreads.